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Finding the Fourth Proportional to 1,940.87, 2,916.17 and 1,824.23

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Solution

The fourth proportional to 1,940.87, 2,916.17 and 1,824.23 is: 2,740.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.87 : 2,916.17 = 1,824.23 : x
  2. Step 2: Convert to fraction form
    1,940.87/2,916.17 = 1,824.23/x
  3. Step 3: Cross multiply
    1,940.87x = 2,916.17 × 1,824.23
  4. Step 4: Simplify right side
    1,940.87x = 5,319,764.80
  5. Step 5: Solve for x
    x = 5,319,764.80/1,940.87
  6. Step 6: Final answer
    x = 2,740.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.